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Statements: No pen is a pencil. Some pencils are erasers. Conclusions: I. Some erasers are not pens.
II. All erasers being pens is a possibility. Which conclusion(s) follow?

Competition practiceSyllogism
  • AOnly I follows
  • BNeither I nor II follows
  • CBoth I and II follow
  • DOnly II follows

Step-by-Step Solution

The erasers that are pencils cannot be pens, so some erasers are not pens (I). Since those eraser-pencils are certainly not pens, all erasers being pens is impossible, so II fails.
Answer: A) Only I follows

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